upstream/mercurial-mirror Files · contrib/setup-pytype.sh

configitems: declare items in a TOML file...

configitems: declare items in a TOML file Mercurial ships with Rust code that also needs to read from the config. Having a way of presenting `configitems` to both Python and Rust is needed to prevent duplication, drift, and have the appropriate devel warnings. Abstracting away from Python means choosing a config format. No single format is perfect, and I have yet to come across a developer that doesn't hate all of them in some way. Since we have a strict no-dependencies policy for Mercurial, we either need to use whatever comes with Python, vendor a library, or implement a custom format ourselves. Python stdlib means using JSON, which doesn't support comments and isn't great for humans, or `configparser` which is an obscure, untyped format that nobody uses and doesn't have a commonplace Rust parser. Implementing a custom format is error-prone, tedious and subject to the same issues as picking an existing format. Vendoring opens us to the vast array of common config formats. The ones being picked for most modern software are YAML and TOML. YAML is older and common in the Python community, but TOML is much simpler and less error-prone. I would much rather be responsible for the <1000 lines of `tomli`, on top of TOML being the choice of the Rust community, with robust crates for reading it. The structure of `configitems.toml` is explained inline.

Matt Harbison - - Load All Authors

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        Matt Harbison
    
contrib: add a script for adding vendored type stubs to typeshed...

              r50547
            
      #!/bin/bash

      set -e

      set -u

      # Find the python3 setup that would run pytype

      PYTYPE=`which pytype`

      PYTHON3=`head -n1 ${PYTYPE} | sed -s 's/#!//'`

      # Existing stubs that pytype processes live here

      TYPESHED=$(${PYTHON3} -c "import pytype; print(pytype.__path__[0])")/typeshed/stubs

      HG_STUBS=${TYPESHED}/mercurial

      echo "Patching typeshed at $HG_STUBS"

      rm -rf ${HG_STUBS}

      mkdir -p ${HG_STUBS}

      cat > ${HG_STUBS}/METADATA.toml <<EOF

      version = "0.1"

      EOF

      mkdir -p ${HG_STUBS}/mercurial/cext ${HG_STUBS}/mercurial/thirdparty/attr

      touch ${HG_STUBS}/mercurial/__init__.pyi

      touch ${HG_STUBS}/mercurial/cext/__init__.pyi

      touch ${HG_STUBS}/mercurial/thirdparty/__init__.pyi

      ln -sf $(hg root)/mercurial/cext/*.{pyi,typed} \

             ${HG_STUBS}/mercurial/cext

      ln -sf $(hg root)/mercurial/thirdparty/attr/*.{pyi,typed} \

             ${HG_STUBS}/mercurial/thirdparty/attr

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Matt Harbison contrib: add a script for adding vendored type stubs to typeshed...	r50547	#!/bin/bash

		set -e
		set -u

		# Find the python3 setup that would run pytype
		PYTYPE=`which pytype`
		PYTHON3=`head -n1 ${PYTYPE} \| sed -s 's/#!//'`

		# Existing stubs that pytype processes live here
		TYPESHED=$(${PYTHON3} -c "import pytype; print(pytype.__path__[0])")/typeshed/stubs
		HG_STUBS=${TYPESHED}/mercurial

		echo "Patching typeshed at $HG_STUBS"

		rm -rf ${HG_STUBS}
		mkdir -p ${HG_STUBS}

		cat > ${HG_STUBS}/METADATA.toml <<EOF
		version = "0.1"
		EOF


		mkdir -p ${HG_STUBS}/mercurial/cext ${HG_STUBS}/mercurial/thirdparty/attr

		touch ${HG_STUBS}/mercurial/__init__.pyi
		touch ${HG_STUBS}/mercurial/cext/__init__.pyi
		touch ${HG_STUBS}/mercurial/thirdparty/__init__.pyi

		ln -sf $(hg root)/mercurial/cext/*.{pyi,typed} \
		${HG_STUBS}/mercurial/cext
		ln -sf $(hg root)/mercurial/thirdparty/attr/*.{pyi,typed} \
		${HG_STUBS}/mercurial/thirdparty/attr